Nice watercolor-like aesthetic.
Thanks for including instructions in the comment, I'd be lost without them ;). The game is short and to the point, no complaint there. Could use a little more fluff with simple particle effects and SFX. The stingray isn't much of an obstacle, perhaps complicating the level layout with some additional walls, and introducing intertia to movement could be a way to make it more challenging?
Solid effort :)